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Testing method of phase change temperature and heat of inorganic high temperature phase change materials

Experimental Thermal and Fluid Science, 2013
An analytical temperature model and an enthalpy difference function, based on lumped parameter method and assumption of rectangular effective specific heat, are presented in this study, which can measure the enthalpy change of inorganic salt high temperature.
Yuefeng Li   +3 more
openaire   +1 more source

Low temperature paraffin phase change emulsions

International Journal of Refrigeration, 2010
Abstract A paraffin phase change emulsion is a multifunctional fluid consisting of water as the continuous phase and a paraffin as the dispersed phase. It can store or transfer large amounts of thermal energy by using the latent heat capacity of the paraffin during the solid–liquid transition as well as the sensible heat capacity of water and that of
Li Huang   +2 more
openaire   +1 more source

Development of high temperature phase-change-material storages

Applied Energy, 2013
High-temperature PCM is a key component for storing latent heat. This is necessary for efficient energy storage in connection with the two-phase heat transfer fluid water/steam. Due to the low thermal conductivity of the nitrate salts used for high-temperature PCM storage, it is necessary to increase the heat transfer rate to meet the necessary power ...
Laing, Doerte   +4 more
openaire   +3 more sources

Encapsulation of High-Temperature Phase Change Materials

2018
In an attempt to solve the poor conductivity and material compatibility issues that are common with phase change materials (PCMs), the encapsulation of these materials is proposed. The encapsulation of the PCM involves the covering of the PCM in a suitable material.
Rhys Jacob, Wasim Saman, Frank Bruno
openaire   +2 more sources

Materials for Phase Change Material at High Temperature

2018
To develop a cost effective and efficient latent thermal energy storage system using phase change material (PCM), selecting a suitable material is very critical. It has to satisfy certain criteria in order to fulfill the requirement of repeated heating and cooling cycles. This chapter describes the basic requirements on a material to be considered as a
Ming Liu   +2 more
openaire   +2 more sources

Phase-change problems with variable surface temperatures.

AIAA Journal, 1967
Simplified procedures are described for the approximate solution of heat-transfer problems with phase change for time-dependent surface temperatures. For constant surface temperature, the specified problem reduces to classical form and may be solved analytically by the method of Neumann.
O. P. SHARMA, M. ROTENBERG, S. S. PENNER
openaire   +1 more source

Controlled Latent Heat Phase-Change Microcapsules for Temperature Regulation

ACS Applied Materials & Interfaces, 2023
Microencapsulation of phase-change materials (PCMs) is of great value and significance for improving energy efficiency and reducing carbon dioxide emissions. Here, highly controllable phase-change microcapsules (PCMCs) with hexadecane as the core material and polyurea as the shell material were developed for precise temperature regulation.
Chen Li   +4 more
openaire   +2 more sources

Recyclable low-temperature phase change microcapsules for cold storage

Journal of Colloid and Interface Science, 2020
Recyclable low-temperature phase change microcapsules (LTPCMs) have the potential applications in the short-distance cold chain transportation due to their reliable reusability in cold storage. Herein, LTPCMs are synthesized via in-situ suspension copolymerization of styrene and methyl methacrylate in absence of harm substances, providing the non ...
Jiaojiao, Zhao   +8 more
openaire   +2 more sources

Simulation of convective temperature oscillations in phase-change processes

International Journal of Heat and Mass Transfer, 1992
Abstract This work is directed towards numerical simulations of short time temperature oscillations in liquid during the melting and/or solidification processes. A new approach based on the time-dependent Navier-Stokes equation developed for this purpose is proposed. The method is further applied to three example situations showing that it is capable
Pražák, J., Pátek, J.
openaire   +2 more sources

Dynamic Mapping of Temperature Using Phase-Change Materials

Conference on Lasers and Electro-Optics, 2022
GST pixels are fabricated on metallic heaters where the optical reflection is observed and used to extract dynamic temperature changes. Our results provide a new way to measure the thermal response of microsystems in real-time.
Nicholas Nobile   +6 more
openaire   +1 more source

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